Monday night, local garage band Triathalon turned a corner with the release of their new single “All The Time.” The track is a preview of the band’s upcoming EP, “Vibes,” which was produced, mixed and mastered by Peter Mavrogeorgis at the newly constructed Dollhouse Studios in Savannah.

The band of Savannah College of Art and Design students has been rising fast since the 2011 project “Relationchips,” a hooky, five-song effort that shined with promise despite lo-fi production. In 2012, Triathalon gained momentum through a series of live performances that included opening for heralded musician Dan Deacon and a Fashion’s Night Out runway show on Broughton Street. Next month, they’ll play a prime-time show as part of Savannah Stopover.

“All the Time” kicks off with the sort of surfy, reverberating guitar lick that typifies the band’s earlier efforts, but now it’s deepened by Mavrogeorgis’ production. Frontman Adam Intrator’s trademark, fetching vocals and fiery lyricism return: “I want you in my arms / I want you to wear all my clothes / I want you in my bed / I want you to be one of those.” That leads into the bridge and then the refrain, a rocky mix of doo-wop and indie R&B that binds the track together. But lest you get complacent: At 1:54, you’re suddenly hit with 20 seconds of left-field distortion that blasts your expectations. It’s this effect, perhaps Mavrogeorgis’ touch, that really makes you shake your head and believe, “OK. Yes. This is something new. This is going places.”

For a group of dudes who all just turned 21, Intrator, Hunter Jayne (guitar), Michael Younker (bass) and Chad Chilton (drums) prove they’ve still got plenty of musical maturity, and it’s aging into something remarkable.

“This was our first time recording in a real studio and working with a producer,” Jayne says. “Having a fifth person in the room to speak objectively was helpful and has strengthened our sound. We were scared at first, almost like being naked, but the new experience helped distinguish everyone’s strengths and weaknesses, which only made us a lot more serious about what we want to do. Peter’s patience with us resulted in a better outcome.”

“‘Vibes’ is a really classic approach to everything we have grown up on,” Intrator adds. “It’s more mellow, less angsty and definitely more grown up.”

Look for the full release of “Vibes” at Triathalon’s Stopover show in March. They’ll be giving away personalized, limited-edition CD pressings of the EP before their 11 p.m. show at Hangfire. For tickets, visit savannahstopover.com.